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Table 6 Baseline frequencies of semi-quantitative MRI biomarkers –hoffa- and effusion-synovitis

From: Semi-quantitative MRI biomarkers of knee osteoarthritis progression in the FNIH biomarkers consortium cohort − Methodologic aspects and definition of change

MRI feature

Biomarker

Overall n (%)

Controls

Cases

p-value

Hoffa-synovitis

    

0.004*

 0

246 (41 %)

186 (45.8 %)

60 (30.9 %)

 

 1

302 (50 %)

190 (46.8 %)

112 (57.7 %)

 

 2

47 (8 %)

26 (6.4 %)

21 (10.8 %)

 

 3

5 (1 %)

4 (1.0 %)

1 (0.5 %)

 

Effusion-synovitis

    

0.560

 0

233 (39 %)

156 (38.4 %)

77 (39.7 %)

 

 1

250 (42 %)

176 (43.3 %)

74 (38.1 %)

 

 2

97 (16 %)

62 (15.3 %)

35 (18.0 %)

 

 3

20 (3 %)

12 (3.0 %)

8 (4.1 %)

 
  1. *statistically significant at p < 0.05; p values refer to differences between cases and controls across all grades